.NET Framework remove tool from Aaron Stebner

On my developer pc I had a .NET Framework 4.0 RC installation, over which I installed the final release, without removing the RC version. When I wanted to set things right and uninstall all of .NET Framework 4.0 the normal way through control panel, it failed to do so. Also I could not repair or reinstall it.
Via google I found Aaron Stebner's blog where one can download a handy utility '.NET Framework Cleanup Tool'. This tool helped met in removing the last remains of version 4.0. After the cleanup I was able to install the .NET Framework 4.0 again and continue my real work.
The tool can be found here

Understanding and Using APPLY in SQL Server

I've read an interesting article by Paul White on Understanding and Using APPLY:
Understanding and Using APPLY (Part 2)

how to update the window in WPF while performing computations

since WPF is multithreaded, updating the window while looping through computations is not evident. I found this solution on
Michael Covington's site